This Low Calorie Vodka Tonic recipe is just 131 calories thanks to the all natural zero calorie tonic water I found (see link below).You can make this with whatever tonic you find, but if you are looking to keep the calories low, and the chemicals out of your diet. Check out the one below.Special Tip: If you prefer a lemon wedge in your vodka tonic, by all means swap out the lime for lemon.